Genes for Self-Incompatibility Usually Inhibit

Question

Genes for self-incompatibility usually inhibit
A) the production of pollen grains.
B) pollination.
C) the growth of the pollen tube.
D) the growth of the style.
E) microspore formation.

Accepted Answer

Self-incompatibility genes prevent the growth of the pollen tube in incompatible pollen, ensuring that only pollen from genetically different individuals can fertilize the ovule. This mechanism promotes genetic diversity.